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Equinovarus foot function after stroke


- candidate number24647
- NTR NumberNTR5964
- ISRCTNISRCTN no longer applicable
- Date ISRCTN created
- date ISRCTN requested
- Date Registered NTR14-jul-2016
- Secondary IDsABR 58628 CCMO dossier number
- Public TitleEquinovarus foot function after stroke
- Scientific TitleEffect of surgery on foot function in the management of equinovarus foot deformity following stroke
- ACRONYMCVA-foot
- hypothesisExploratory study to develop hypotheses
- Healt Condition(s) or Problem(s) studiedEquinovarus foot, Stroke
- Inclusion criteria1. Unilateral ischaemic or haemorrhagic hemiparetic stroke
2. Time since stroke > 6 months
3. Age 18 years or older
4. Walking disabilities and/or fall incidents and/or pressure sores on the foot and/or unable to walk bare foot due to structural or dynamic equinovarus foot deformity, including
a. problems with stability in stance
b. problems with foot clearance during swing
c. problems with foot prepositioning in early stance
5. Subject is able to participate in an 1.5 hour session, including several stand and walking activities (walking aids allowed) with breaks in-between
- Exclusion criteria1. Complicating medical history such as cardiac, pulmonary, neurological or orthopaedic disorders that could affect performance of the included measurements
2. Neurolysis (fenol/alcohol) < 8 months
3. Motorpoint blockage (btx) < 5 months
4. Suffering from severe neglect
5. Severe comprehensive aphasia
6. Severe cognitive disorders
- mec approval receivedyes
- multicenter trialno
- randomisedno
- group[default]
- Type[default]
- Studytypeobservational
- planned startdate 20-okt-2016
- planned closingdate20-okt-2020
- Target number of participants20
- InterventionsThe measurements will take place befor and after standard soft-tissue surgery
- Primary outcomeLower extremity body motion (kinematics) during gait
- Secondary outcomeFUNCTION
• Forceplate: The body loading (kinetics) during gait .
• Motricity Index, lower extremity: rapid overall indication of limb impairment and a validated measure for strength of the lower extremity
• Ankle dorsiflexor muscle strength will be assessed by means of a hand-held dynamometer.
• The muscle activation patterns of the leg and foot muscles
v WALKING ABILITY
• Timed Balance Test
• Timed Up and Go (TUG)
• L-test
• 10 meter walk test (10 m WT)
• 6 minute walk test (6 minWT) to assess walking endurance [Kosak 2005, Tyson 2009].
• Foot and Ankle Ability Measure (FAAM) to assess the ability and difficulty to walk and stand during various daily activities
• Barefoot mobility, 3 questions will be included to assess ability and difficulty to walk bare foot while getting in and out of the bed, walking to the toilet and personal care.
• Rate of perceived Exertion (RPE or Borg scale) is scored for the L-test barefoot and for the 6 min WT (wearing shoes)
• Functional Gait Assessment (FGA)
• Functional Ambulation Categories (FAC) to assess the level of physical support needed to walk safely and to assess where the participant can walk.

PARTICIPATION
• Three patient specific complaints (PSK’s) are assessed and scored on a visual analogue scale (VAS) with each a maximum score of 100 points.
• Stroke Impact Scale (SIS) version 3.0 to assess impairments and quality of life .
• Nottingham Extended ADL to assess the ability to independently perform activities in daily life regarding mobility, kitchen activities, household and recreation.
• Falls Efficacy Scale International (short-FES-I)
- TimepointsTwo measurement points:
1. One-two months before foot and ankle equinovarus soft tissue surgery
2. 6 months after surgery
- Trial web siten.a.
- statusplanned
- CONTACT FOR PUBLIC QUERIES Rosemary Dubbeldam
- CONTACT for SCIENTIFIC QUERIES Rosemary Dubbeldam
- Sponsor/Initiator Roessingh Research and Development
- Funding
(Source(s) of Monetary or Material Support)
Roessingh Research & Development
- Publicationsn.a.
- Brief summaryRationale: Equinovarus is the most frequently seen foot deformity in the affected leg after stroke and compromises the patient’s walking ability and participation in daily life. Surgical intervention is a promising therapy since it enables the patient to walk more independently, barefoot, without the need of an orthosis. However, the effects of the foot and ankle surgery on restoring foot and ankle kinematics and kinetics, walking ability and on quality of life are not or not extensively studied.
Objective: The aims of this study are to explore the effects of foot and ankle surgery on the equinovarus foot deformity of patients after stroke in terms of foot function, walking abilities and social participation.
Study design: This study has an exploratory design with two measurement sessions: one 2 months before and the other 6 months after foot and ankle surgery.
Study population: Twenty adult stroke survivors who are patients at the Roessingh Rehabilitation Centre, with chronic hemiplegia and walking disabilities due to an equinovarus foot deformity will participate. These stroke patients are selected clinically to undergo equinovarus surgery and are subsequently asked to participate in this study by their rehabilitation physician.
Intervention: The intervention consists of standard techniques applied in soft-tissue surgery of equinovarus foot deformities.
Main study parameters/endpoints: The main study parameters includes the effect of surgery on restoring foot and ankle kinematics (motion). Furthermore, the effects of surgery on walking ability such as walking speed and endurance and fall risk, as well as daily participation measures is assessed.
Nature and extent of the burden and risks associated with participation, benefit and group relatedness: The risks for the subjects are limited, since the tasks represent functional and familiar movements and are performed within a safe environment. When fatigue occurs, the subjects are able to rest till recovered. Furthermore, a therapist may walk along with the subject in cases necessary or requested. In addition, most measurements used in this study are non-invasive and involve no risks to the subjects in any way. The only invasive measure is performed according to standard clinical procedures.
Participation of a subject in this experiment has no direct benefit for him/her, other than expanding knowledge about the effects of foot and ankle equinovarus surgery on restoring foot and ankle function and walking ability.
- Main changes (audit trail)
- RECORD14-jul-2016 - 30-aug-2016


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